Finding the Fourth Proportional to 216,877.15, 299,282.38 and 120,079.08
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Solution
The fourth proportional to 216,877.15, 299,282.38 and 120,079.08 is: 165,704.65
Step by Step Solution
- Step 1: Write the proportion equation
216,877.15 : 299,282.38 = 120,079.08 : x - Step 2: Convert to fraction form
216,877.15/299,282.38 = 120,079.08/x - Step 3: Cross multiply
216,877.15x = 299,282.38 × 120,079.08 - Step 4: Simplify right side
216,877.15x = 35,937,552,850.61 - Step 5: Solve for x
x = 35,937,552,850.61/216,877.15 - Step 6: Final answer
x = 165,704.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.